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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by dolamroth[/i] [br]Origin Ver. and Service Release (Select Help-->About Origin): OriginPro 8 SR2, v8.0891 Operating System: Win XP Hi! I'm trying to do a two-way ANOVA test where I have Factor A with 2 levels and Factor B with 3 levels. For all combinations I have a different number of measurments (e.g. A1B1 n=13, A2B1 n=18 ...) and if I run the test with indexed data, it works fine. Yet, I'd like to run the test on raw data where I have the data in 6 seperate columns for all the factor combinations as the indexing is a rather elaborate copy-paste work. When I use the raw-data input mode and select the columns (or only the cells with data), I get the error message: Data do not follow balanced design. Every cell must have one and only one data element. When I get'balanced design' then I don't think that I need balanced design for this kind of test (it also works with the indexed data). Any suggestions on what might be wrong? Thanks! mark [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.